One of the easiest upgrades for your AR rifle is the muzzle device, and why not personalize it while you are at it? We have found and selected some of the most affordable high quality muzzle devices and added our signature engraving to them to create truly unique parts for your AR15. Not only will these devices help you get back on target faster, they will look great doing it. These are black oxide coated and include a crush washer to match. Available in 1/2"x28 and 5/8"x24 thread sizes.